Officers from the National Crime Agency working as part of the Paramilitary Crime Task Force (PCTF) have obtained a Property Freezing Order over nine residential properties in County Down and County Antrim under the Proceeds of Crime Act.
The properties have a combined estimated value of around £2 million.
The National Crime Agency, Police Service of Northern Ireland and HM Revenue & Customs, established the PCTF to tackle criminality linked to paramilitarism as part of the Executive's action plan on Tackling Paramilitary Activity, Criminality and Organised Crime.
NCA Branch Commander Billy Beattie said: “Civil recovery investigations continue to play an integral role in the work of the PCTF. These powers are a vital tool and this should act as a strong deterrent to those in our communities engaged in criminal activity.
"We are determined to pursue not just people who are engaged in criminality but also their money and assets.”